माइक, माइक्रोफ़ोन, ऑडियो, ध्वनि, प्रसारण, कंसर्ट, सम्मेलन, मनोरंजन, प्रतिस्पर्धा, ज्ञान, भाषण
Public Domain
प्रासंगिक तस्वीरें
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